<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bootstrap demo</title>
  <!-- 引入CSS -->
  <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>
  <div class="container-fluid mt-3">
    <div id="carouselExampleControls" class="carousel slide" data-bs-ride="carousel">
      <div class="carousel-inner">
        <div class="carousel-item active">
          <!--<img src="..." class="d-block w-100" alt="...">-->
          <svg class="bd-placeholder-img bd-placeholder-img-lg d-block w-100" width="800" height="400"
            xmlns="http://www.w3.org/2000/svg" role="img" aria-label="Placeholder: First slide"
            preserveAspectRatio="xMidYMid slice" focusable="false">
            <title>Placeholder</title>
            <rect width="100%" height="100%" fill="#666"></rect><text x="50%" y="50%" fill="#444" dy=".3em">First slide</text>
          </svg>
        </div>
        <div class="carousel-item">
          <!--<img src="..." class="d-block w-100" alt="...">-->
          <svg class="bd-placeholder-img bd-placeholder-img-lg d-block w-100" width="800" height="400"
            xmlns="http://www.w3.org/2000/svg" role="img" aria-label="Placeholder: Second slide"
            preserveAspectRatio="xMidYMid slice" focusable="false">
            <title>Placeholder</title>
            <rect width="100%" height="100%" fill="#666"></rect><text x="50%" y="50%" fill="#444" dy=".3em">Second slide</text>
          </svg>
        </div>
        <div class="carousel-item">
          <!--<img src="..." class="d-block w-100" alt="...">-->
          <svg class="bd-placeholder-img bd-placeholder-img-lg d-block w-100" width="800" height="400"
            xmlns="http://www.w3.org/2000/svg" role="img" aria-label="Placeholder: Third slide"
            preserveAspectRatio="xMidYMid slice" focusable="false">
            <title>Placeholder</title>
            <rect width="100%" height="100%" fill="#666"></rect><text x="50%" y="50%" fill="#444" dy=".3em">Third slide</text>
          </svg>
        </div>
      </div>
      <button class="carousel-control-prev" type="button" data-bs-target="#carouselExampleControls"
        data-bs-slide="prev">
        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
        <span class="visually-hidden">Previous</span>
      </button>
      <button class="carousel-control-next" type="button" data-bs-target="#carouselExampleControls"
        data-bs-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="visually-hidden">Next</span>
      </button>
    </div>
  </div>

  <!-- 引入JS -->
  <script src="bootstrap-5.2.3-dist/js/bootstrap.min.js"></script>
</body>

</html>